Question

mcSelectionSetWindow方式：实体对象完全在范围才能得到

主要用到函数说明：

函数名：IMxDrawSelectionSet::Select

构造选择集。详细说明如下：

参数	说明
[in] MCAD_McSelect Mode	构造选择集方式
[in] VARIANT point1	构造择择集时需要使用到的点对象
[in] VARIANT point2	构造择择集时需要使用到的点对象
[in,optional] VARIANT filterData	构造选择集的过滤数据
可以取如下值	mcSelectionSetWindow = 0, mcSelectionSetCrossing = 1, mcSelectionSetFence = 2, mcSelectionSetPrevious = 3, mcSelectionSetLast = 4, mcSelectionSetAll = 5, 选择图面上的所有实体 mcSelectionSetWindowPolygon = 6, mcSelectionSetCrossingPolygon = 7, mcSelectionSetUserSelect = 8 mcSelectionImpliedSelectSelect = 9,_I 返回当前图上已经选择的实体

c#中使用如下：

private void SelectWindow()
{
    //创建选择集对象
    MxDrawSelectionSet ss = new MxDrawSelectionSet();
    //创建过滤对象
    MxDrawResbuf spFilte = new MxDrawResbuf();
 
    MxDrawUtility mxUtility = new MxDrawUtility();
    //点取范围左上角位置
    MxDrawPoint point = (MxDrawPoint)(mxUtility.GetPoint(null, "点取范围左上角位置..."));
    //点取范围左下角位置
    MxDrawPoint point1 = (MxDrawPoint)(mxUtility.GetPoint(null, "点取范围右下角位置..."));
 
 
    ss.Select(MCAD_McSelect.mcSelectionSetWindow, point, point1, spFilte);
 
    for (int i = 0; i < ss.Count; i++)
    {
        MxDrawEntity ent = ss.Item(i);
        MessageBox.Show(ent.ObjectName);
    }
}